Disable flaky fast/forms/ web tests

TBR=mcnee@chromium.org

No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1059322
Change-Id: I94b1216fdd9baf444d58a534a0a2bdf95579af3d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2092179Reviewed-by: Collin Baker <collinbaker@chromium.org>
Commit-Queue: Collin Baker <collinbaker@chromium.org>
Cr-Commit-Position: refs/heads/master@{#747883}

third_party/blink/web_tests/TestExpectations

@@ -6765,3 +6765,9 @@ crbug.com/1058073 [ Retina ] accessibility/content-changed-notification-causes-c
 crbug.com/1058203 [ Mac10.11 ] virtual/form-controls-refresh-disabled/fast/forms/autofocus-opera-008.html [ Pass Failure ]
 crbug.com/1059262 http/tests/worklet/webexposed/global-interface-listing-paint-worklet.html [ Pass Failure ]
 crbug.com/1059262 virtual/threaded/http/tests/worklet/webexposed/global-interface-listing-paint-worklet.html [ Pass Failure ]
+crbug.com/1059322 [ Mac ] fast/forms/file/file-input-webkitdirectory-key-enter.html [ Pass Failure ]
+crbug.com/1059322 [ Mac ] fast/forms/file/file-input-webkitdirectory-click.html [ Pass Failure ]
+crbug.com/1059322 [ Mac ] fast/forms/file/file-input-webkitdirectory-key-space.html [ Pass Failure ]
+crbug.com/1059322 [ Mac ] fast/forms/file/file-input-click.html [ Pass Failure ]
+crbug.com/1059322 [ Mac ] fast/forms/autofocus-focus-only-once.html [ Pass Failure ]
+crbug.com/1059322 [ Mac ] virtual/form-controls-refresh-disabled/fast/forms/autofocus-focus-only-once.html [ Pass Failure ]